Archaic abbreviation of 大八洲国, an ancient poetic name for Japan appearing in the Kojiki. Not used in modern Japanese outside historical or literary contexts.
See also: 大八洲国
In the Kojiki, the name 大八洲国 appears, and it was also abbreviated as 大八洲.
Abbreviation of 大八洲国 (Ōyashimaguni), an ancient name for Japan meaning 'the great land of eight islands'. The exact historical derivation is tied to early Japanese mythology.